Home / 647,220.12-893,127.35-356,822.06

Finding the Fourth Proportional to 647,220.12, 893,127.35 and 356,822.06

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Solution

The fourth proportional to 647,220.12, 893,127.35 and 356,822.06 is: 492,394.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,220.12 : 893,127.35 = 356,822.06 : x
  2. Step 2: Convert to fraction form
    647,220.12/893,127.35 = 356,822.06/x
  3. Step 3: Cross multiply
    647,220.12x = 893,127.35 × 356,822.06
  4. Step 4: Simplify right side
    647,220.12x = 318,687,534,619.59
  5. Step 5: Solve for x
    x = 318,687,534,619.59/647,220.12
  6. Step 6: Final answer
    x = 492,394.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.